Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)

The 4R70W has the following features:

  • Wide ratio gears
  • Four speeds
  • Rear wheel drive
  • Automatic
  • Electronic shift
  • Torque converter clutch control
  • Line pressure controls

The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.

4R70W Automatic Transmission

4R70W Automatic Transmission

    Automatic Transaxle/Transmission
    General Specifications a - MERCON V is not interchangeable at this time with the current MERCON fluids. Check the transmission fluid level indicator to determine the correct fluid and refer to the ...

    Identification Tags
    All vehicles are equipped with a Vehicle Certification Label, located on the driver side door lock post. For correct transmission identification, refer to the code in the space marked TR. ...

    Other materials:

    Engine Coolant Temperature (ECT) Sensor - Mach I
    Material Item Specification Pipe Sealant with Teflon D8AZ-19554-A WSK-M2G350-A2 Removal and Installation 1. Remove the air intake scoop. For additional information, refer to Section. 2. Partially drain the engine cooling system. For ...

    Valve Springs
    Special Tool(s) Compressor, Valve Spring 303-163 (T81P-6513-A) Material Removal 1. Remove the LH and the RH valve covers. For additional information, refer to Valve Cover-LH and Valve Cover RH in this section. 2. Rotate the crankshaft un ...

    Removal
    CAUTION: Suspension fasteners are critical parts because they affect performance of vital components and systems and their failure can result in major service expense. A new part with the same part number or an equivalent part must be installed, if installat ...